9 destroyers launched in 2019
23 Feb, 052D#17 Jiangnan shipyard
16 Apr, 052D#18 Jiangnan shipyard
10 May, 052D#19 & 052D#20 Dalian shipyard
28 Aug, 052D#21 Jiangnan shipyard
12 Sept, 055#5 Jiangnan shipyard
26 Sept, 052D#22 Jiangnan shiyard
26 Dec, 052D#23 & 055#6 Dalian shipyard
I bet this...